The Flaming Lips perform during the Harvest Music Festival at the Botanic Gardens in Brisbane, Australia.

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The Flaming Lips have teamed up with a variety of artists including Ke$ha, Bon Iver, Yoko Ono, My Morning Jacket, Nick Cave, Erykah Badu and Chris Martin of Coldplay for The Flaming Lips and Heady Fwends, a limited edition double album that will be released exclusively through retailers participating in Record Store Day on April 21st.

The set, which will only be issued as a double multi-colored vinyl set, includes previously released tracks that have appeared on the band’s recent EPs. The band claims there will only be one pressing of the set, so hardcore Lips fans ought to get to their local shop early unless they’re ready to spend big bucks landing a copy on eBay.

The full track listing for The Flaming Lips and Heady Fwends is as follows:

Side 1:“2012” (featuring Ke$ha and Biz Markie)“Ashes in the Air” (featuring Bon Iver)“Helping the Retarded to Know God” (featuring Edward Sharpe and the Magnetic Zeros)